Door



July 24, 1 23.

O. E GIBSON DOOR Filed April 18. 1922 2 Sheets-Sheet l a 7 3 i a 2 2 July 24, 1923. v 1.462%6 o. E. GIBSON,

DOOR

Filed April 18. 1922 2 Sheets-Sheet 2 "XQ, E 55.

22 /9 /5 w 29 3 37 t s f v Patented July 24, 1923.

UNITED STATES 1,462,86 PATENT OFFICE;

OLIVER E. GIBSON, OF MECHANIGSBURG, PENNSYLVANIA, ASSIGNOR TO POTTS MANUFACTURING COMPANY, OF MECHANICSBURG, PENNSYLVANIA, A. CORPORA- 'IION OF PENNSYLVANIA.

DOOR.

Application filed April 18, 1922. Serial No. 554,527.

To all whom it may concern Be it known that I, OLIVER E. GIBSON, a citizen of the United States, residing at Mechanicsburg, in the county of Cumberland and State of Pennsylvania, have invented certain new and useful Improvements in Doors, of which the following is a specification.

This invention relates to doors held flush with a surface, and more particularly to such a door comprising a frame flush with a surface in which is mounted a hinged closure. The embodiment shown and described comprising a sidewalk door having two hinged leaves mounted in a rectangular frame, suitable gutters being provided where the leaves join the frame and where the leaves meet each other.

The object of the invention is the production ofa strong and durable door which will be flush in all respects with the surfacevin which it is mounted, effectually preventing the leakage of water into the compartment below the same. A further object is the provision in such a door of a novel hinge connection between the closure element and its frame, and which will insure the supporting of the leaf closure upon the members of the frame both in its closed and open position. Another object is the provision of a hinge construction in such a door which will constitute a portion of the flush surface and effectually fill in the cut out portions of the frame provided for their reception.

A further object of the invention is the provision of a combined truss and center drain gutter for such a door. A still further object is the provision of a lock in such a door, cooperating with the center gutter and attached to its supporting leaf in a novel manner.

A still further object is the productionof a novel hinge construction with the pintle so located as to permit the door to overlap the frame in closed position and to rest upon the frame in an inclined open position. A further object of theinvention is the provision of a bevelled hinge base attached to the frame by screws inserted from the interior of the frame, whereby the hinges and closure leaves may be readily removed from the frame on account of breakage of the parts for repair or replacements without disturbing the setting of the door frame.

Other objects and advantages ofthe invention will hereinafter appear in the following description and the novel features thereof will be particularly'pointed out in the appended claims.

Like reference numerals indicate like parts throughout the several figures of the drawings, in which- Figure l is a plan view of a surface-flush door embodying my improvements,

Figure 2 is a perspective of a small sec tion of the door showing the parts with the leaf in closed position,

' Figure 3 is a similar view showing the closure leaf removed,

Figure 4 is a section through the parts shown in Figure 2,

Figure 5 is a perspective of one edge of the closure leaf carrying the combined truss and drain gutter,

Figure 6 is a section through the meeting edges of the closure leaves near the point where the lock engages the central drain gutter, and

Figure 7 is a perspective showing the mapner of attaching the lock to the closure lea It will be appreciated that my invention is susceptible of a number of embodiments, that the details of construction may be changed and the relative position of certain of the parts may be altered; the embodiment shown and described is therefore to be c0nsidered as indicative only of the principles of the invention. This embodiment, however, has been found to be practical in construction and operation and eflicient in use.

The closure of this invention comprises a frame mounted in an opening and embodies a drain gutter at all sides thereof, and a hinged leaf or leaves fitted within the frame and connected thereto in a manner to pro duce a flush surface with the frame. The meeting edges of companion leaves are provided with an adjustable truss and center gutter, and with a lock. These parts will now be described in detail and their individual functions pointed out, after which a recital of their conjoint operation will be given.

The main channel members comprising the frame of the closure are designated by the numeral 10 and as shown in Figures 2 and 4 this member is secured to an angle 11 at its bottom. -The upright 12 of this angle forms with the web 13 of the channel a drain gutter 14. It will be understood that the frame is formed with four sides of these channel and angle members, which are suitably connected at the corners. At the lower portion of the frame, the gutter is provided with a series of outlet openings provided with plugs, the lowermost one being capable of use as a drain connection upon the removal of its plug.

The upper portion of the channels is cut away as shown in Figure 3 for the reception of the hinges, which are designed to fit snugly withinthe said cutaway portions. These hinges comprise an attaching base I and a leaf: 16, the base being attached tov the web 13 of the channel by bolts 17, as shown in Figure 4-, while the hinge'leaf isattached to. the closure leaf 18 by rivets 19 passing through the reinforcing angle. It will be seen that the bolts 17 can be. readily removed and the closure leaves with the hinges removed from the frame. The upright 12 is low enough to permit the ready removal of the bolts 17.

The border ofthe frame is made of ribbed steel strips of a thickness corresponding to the thickness of the closure leaves sov as to produce in the closeddoor a flush and nonslip top, it being understoodthat the upper surfaces of theclosure leaves are suitably roughened, as shown in Figure 1. The border strip is designated by the numeral 20 and is cut away as shown in Figure 2 to accommodate the hinge. There is a slight clearance between the border strip and closure leaf to permit, as hereinafter explained.

the movement of the'closure leaf upon the" hinge. The frame is usually set in cement, asshown in Figure 4:.

The membersof thehinge may be made of any suitable materiah for instance, bronze with steel pintles' The attaching base is bevelled upon its back as shown at 21 in Figure .4 and upon its face is provided with an offset 22, which construction allows the pintle 23 to be placed in such a position as to permit the closure leaf to overlap and rest upon the channel frame member; the closure leaf-is thereby directly supported by the web 13' and forms therewith a tight joint to prevent leakage of water or other foreign matter into the gutter. The top faces of both members of the hinge, designated by the, numerals, respectively, 2% ant 25,are flat inorder to aid in forming the flush sur face of thedoor and in closing the openings provided in the channel, 10 and border strip 20: The hinge leaf 25 is provided at its rear with a slightly rounded corner and the bifurcations, of the attaching base are likewise provided with slightly curved corners.

to facilitate opening of: the closure leaves. Thehinge, leaf '25 is provided with two offsets 26 and 27 thefirst being for the reception of'the closure leaf edge while the second receives the reinforcing angle 19 Which extends throughout the lengthof the closure leaf.

It will be seen that the hinged connection between the closure leaf and the frame prorides a well supported, tight and flush joint, the rear edge of the closure leaf'overlapping the frame and resting upon the channel 10 in a directline with the web. The particular location of the pintle 23 enables the closure leaf to be swung upon the hinge to an inclined open position with its edge resting upon the border strip 20, as shown in Figure 4, it being understood that to either side of the hinges the edge of the closure leaf will rest upon the border strip back from its edge. The bevelling 'of'the attaching base of the hinge with the bolts 17 removable within the drain gutter enables the easy removal of the closure leaves and the hinges from the frame for repair" or replacement of parts. The special location of the parts with relation to each other produces flush top surface for the'door. l

In-Figure 5 is shown one of the meeting edges of a closure leaf, to which is attached upon its under face a projecting channel member 28. This channel is secured to the closure lea-fby meansof rivet-s and spacing buttons or strip, as shown at 29 on the draw ing. The channel constitutes one element of justingv screws to support or space themem-- bers of-the truss. Besides acting as an element of the truss the channel 28 provides a drain gutterfor; the opening between the meeting edges of the closure leaves and communicates a-t'=its ends with the gutters ofthe main frame. i

In Figure 7'isshovvn;anove}l' mounting of'a lock or latch fora door ofthistype. The lock casing 3t-is' provided with the usual sliding bolt 33 and operating element. Cast with said casing are the angle lugs 35 which project from either side thereof. These lugs provide a fasteningmeans between; the lock casing andthe reinforcing angle attached to the under side of the leaf, rivets 37 being the instrumentalities for connecting these parts together. It will be seen that the lock is attached to the companion leaf from that shown in Figure 5, and when in closed position, the sliding bolt 33 takes underthe channel or gutter; member 28. The attachment of the lock casing to theleaf in this,

It remains therefore only necessary to a 1 complete disclosure to recite how the several elements combine in the production of an efficient, strong and durable door in which all of the parts join in the accomplishment of a flush surface'and a practically leakproof closure.

In Figure 1 the door is shown in closed position. In opening it, it isnecessary to retract the bolt 33 (Figure 6) by lifting the bolt actuating plate, which will project through the slot 3a. in the closure leaf, as shown in Figure 7, the upper edge of said plate normally lying flush with the upper surface of the leaf. After the bolt has been retracted, the leaf carrying the same may be lifted from. the channel support 28 and swung into an inclined raised position corresponding to that shown for the companion closure leaf in Figure .4, dotted lines.

It will be understood that the ends of the combined gutter and truss rest upon the web 13 of the channel 10 at the top and bottom of the frame and effectually support in the frame the meeting edges of the closure leaves when the door is closed. Any leakage of wa ter through the opening between themeeting edges will be conducted to the gutters at top and bottom of door frame.

After the raising of the first leaf, it is obvious that the companion leaf may be readily lifted. Due to the peculiar formation of hinge and placing of hinge pintle, the closure leaf can be freely swung over to the inclined position when it will be supported by the edge thereof coming into contact with the substantial center line of the border strip 20. By a close inspection of igure 4 it will also be seen that the rear end of the hinge leaf 25 will contact with the shelf formed between the bifurcations of the attaching base 15 of the hinge, and thereby assist in the supporting of the closure leaf in open position. By such a construction a minimum of strain is placed upon the hinge pintle.

It will be observed that the bevelled formation of the attaching base of the hinge with the screws inserted from the gutter 14 enables the removal of the hinges and closure leaves even though cement has been poured in around the same and allowed to set. The attaching of the hinge leaf 16 in the manner shown produces a rigid connection between the hinges and the closure leaves. Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a door comprising a swinging closure leaf, a reinforcement for the edge of said leaf comprising a lock casing having projecting lugs at its sides, bracing elements extending from said casing to the ends of the leaf, and means for rigidly connecting said bracing elements to said lock casing and to said leaf.

2. In a door comprising a swinging closure leaf, a reinforcement for the edge of said leaf comprising a lock casing having angle projections therefrom, and angle bracing members extending from the casing to the ends of the door and inclosing the angle projections, and means for attaching the angle bracing members to said projections and to said leaf including rivets passing through those three elements.

3. In a door comprising a pair of swinging closure leaves and as a means for bracing and locking the meeting edges of said leaves, a trussed gutter attached to one of said leaves and projecting beyond the edge thereofto form a support for the edge of the companion leaf, a reinforcement for said companion leaf comprising a lock casing and bracing elements rigidly connected to said lock casing and extending therefrom to the ends of the leaf, and a sliding bolt in said lock casing engaging the under edge of said trussed gutter when the leaves-are in closed position.

4. In a door, a frame element comprising a web and a supporting shelf extending therefrom, closure leaf supported at one side upon said shelf and above said web when in closed position and at its edge upon said shelf in its open position, and hinge 1confnections between said web and closure ea I 1 5. In a door comprising a frame and a pivoted closure leaf, a frame element comprising a web and a shelf extending therefrom, a portion of said web and said shelf being cut away for the reception of hinge members,'and hinges comprising an attaching base secured to said web and a hinge leaf attached to the closure leaf in front of said web, the pintle of said hinge lying. in the plane of said shelf to the rear of said web, whereby the rear edge of said closure leaf is supported in closed position upon the said shelf above said web.

6. In a door comprising a frame and a pivoted closure leaf, a frame element comprising a web and a shelf extending therefrom, a border strip supported at the rear of said shelf, a portion of said web, shelf and border strip being cut away for the re ception of hinge members, hinges comprising an attaching base secured to the rear of said web, and a hinge leaf attached to the closure leaf in front of said web, the pintle of said hinge lying in the plane of said shelf to the rear of said web, and said hinge members having flat upper faces lying in a common plane with the upper faces of said border strip and said closure leaf.

7. Ina door comprising a frame and a pivoted closure leaf, a frame element comprising a Web, and a hinge comprising a bevelled attaching base removably secured to the rear face of said web and a hinge leaf projecting forward of said web and carrying the closure leaf, the pintle of said hinge being located to the rear of said web.

8. In a door comprlsing a frame set in a plastic. surface and a pivoted closure leaf in said frame, a frame element com-prising an upright supporting Web, a structural: element forming with sald web a drain gutter,

' and a hinge having a bevelled attaching base located to the rear of said Web and attached thereto by screws passing through said web and base from the direction of said drain gutter, whereby the hinge may be removed With the parts carrying it without disturbingthe plastic surface.

9. In a door'comprising a frameof structural elements having cut away portions therein hin es mounted in said cut. awa

v b y portions and comprising an attaching base adapted to be secured to said frame and a hinge leaf, a closure leaf-secured to said hinge leaf, said hinge baseand leaf having fiat planes at substantial right angles to each other, the said face having its lower portion (arrying portion an-angular recess for the reception of a closure leaf and having there- In a further angular recess for the receptlon of a structural reinforcing element for said closure leaf, whereby the said reinforcing element, closure leaf and hinge leaf may be secured together with the top surfaces; of

the pintleucarrying portion and closure leaf in a common plane. v

12. A hinge for a surface flush door comprising a bifurcated attaching base and a leaf, the upper portions of the pintle carrying portions of which have flat faces lying in a common plane with the upper surface of the closure leaf in the closed positionv of the door, the leaf being provided with a reduced portion defining anangular recess for the receptionof the closure, leaf, a shelf provided by the bifurcations of the attaching base uponwhich the rear face of the pintle carrying section of the hinge leaf rests when the door is in an inclined open position.

OLIVER n. sins-on. 

